连接两个字符串，并用逗号和空格隔开 [英] Joining two strings with a comma and space between them

问题描述

我得到了两个字符串 str1 和 str2 ，我需要将它们加入一个字符串。结果应该是这样的： String1，String 2 。 str1 和 str2 变量没有， 。

I have been given the two strings "str1" and "str2" and I need to join them into a single string. The result should be something like this: "String1, String 2". The "str1" and "str2" variables however do not have the ", ".

现在要问的问题：如何在用逗号和空格分隔字符串的同时连接这些字符串？

So now for the question: How do I join these strings while having them separated by a comma and space?

这是我看到任务时想出的结果，它不会与， 分开，结果是

This is what I came up with when I saw the "task", this does not seperate them with ", " though, the result for this is "String2String1".

function test(str1, str2) {

    var res = str2.concat(str1);

    return res;

}

推荐答案

尝试一下：

 function test(str1, str2) {

     var res = str2 + ',' + str1;

     return res;

 }

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